Year	Number
1988	42251
1989	42503
1990	43265
1991	41566
1992	42355
1993	49873
1994	55271
1995	58681
1996	59901
1997	60636
1998	61207
1999	61834
2000	62334
2001	59593
2002	58970
2003	62426
2004	62958
2005	61541
2006	61952
2007	61397
2008	56447
2009	56527
2010	55863
2011	54731
2012	55877
2013	55737
2014	55396
2015	55657
2016	54310
2017	53610
2018	53204
2019	52703
2020	52327
2021	52411
2022	51315